268 research outputs found

    On existence and nonexistence of nonnegative solutions to seminlinear differential equation on Riemannian manifolds

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    In this paper, we give a clear cut relation between the the volume growth V(r)V(r) and the existence of nonnegative solutions to parabolic semilinear problem \begin{align}\tag{*}\label{*} \left\{ \begin{array}{ll} \Delta u - \partial_t u + u^p = 0, \\ {u(x,0)= {u_0(x)}}, \end{array} \right. \end{align} on a large class of Riemannian manifolds. We prove that for parameter p>1p>1, if \begin{align*} \int^{+\infty} \frac{t}{V(t)^{p-1}} dt = \infty \end{align*} then (\ref{*}) has no nonnegative solution. If \begin{align*} \int^{+\infty} \frac{t}{V(t)^{p-1}} dt < \infty \end{align*} then (\ref{*}) has positive solutions for small u0u_0.Comment: 9 page

    Otimização da formação de assistentedentário

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    En el escenario de la Educación Superior la formación técnico profesional se plantea la expansión universal de la tecnología, la ciencia y la cultura, lo cual invita a cuidar y apreciar nuestros valores, a responder a la competitividad y a los retos de calidad y excelencia. La práctica odontológica se halla en un mundo cambiante, el sector salud enfrenta un desafío a las problemáticas de salud oral de la población. Aquí reflexionamos sobre la formación de Asistentes Odontológicos, siendo central fortalecer las prácticas pre-profesionales supervisadas. Para el abordaje del problema planteado se consideran como etapas de intervención la preparación preliminar para la acción, la planificación de las prácticas pre-profesionales supervisadas y la ejecución de las prácticas pre-profesionales. En el desarrollo de las etapas se contemplan reuniones de coordinación y organización de actividades, selección de espacios físicos y de docentes tutores, distribución de los alumnos de la Tecnicatura en Asistencia Odontológica en ámbitos asistenciales de diferentes especialidades y/o complejidad. También involucra el seguimiento y la evaluación de las prácticas pre-profesionales supervisadas. Esta estrategia estará reflejada, en el futuro, por la calidad técnico-científica y humanística en el desempeño del Asistente Odontológico, acorde a las demandas y como integrante del equipo odontológico.In the higher education scenario, vocational technical training is proposed the universal expansion of technology, science and culture, which invites us to take care of and appreciate our values, to respond to competitiveness and to the challenges of quality and excellence. Dental practice is in a changing world, the health sector faces a challenge to the oral health problems of the population. Here we reflect on the training of Dental Assistants, being central to strengthen supervised pre-professional practices. For the address of the problem raised, preliminary preparation for action, planning of supervised pre-professional practices and the implementation of pre-professional practices are considered as intervention stages. The development of the stages includes, coordination and organization meetings of activities, selection of physical spaces and tutor teachers, distribution of students of the Technique in Dental Assistance in care areas of different specialties and / or complexity. It also involves monitoring and evaluating supervised pre-professional practices. This strategy will be reflected, in the future, by the technical-scientific and humanistic quality in the performance of the Dental Assistant, according to the demands and as a member of the dental team.No cenário do ensino superior, propõe-se a formação técnica profissional a expansão universal da tecnologia, da ciência e da cultura, que nos convida a cuidar e apreciar os nossos valores, a responder à competitividade e aos desafios da qualidade e excelência. A prática dentária está num mundo em mudança, o sector da saúde enfrenta um desafio aos problemas de saúde oral da população. Aqui refletimos sobrea formação de Assistentes Dentários, sendo centrais para fortalecer as práticas pré-profissionais supervisionadas. A preparação preliminar para a ação, o planeamento das práticas préprofissionais supervisionadas e a implementação de práticas pré-profissionais são consideradas como fases de intervenção para a resolução do problema levantado. O desenvolvimento das etapas inclui, coordenação e reuniões de organização de atividades, seleção de espaços físicos e professores tutores, distribuição de alunos da Técnica de Assistência Dentária em áreas de cuidados de diferentes especialidades e/ou complexidade. Envolve também a monitorização e avaliação de práticas pré-profissionais supervisionadas. Esta estratégia refletir-se-á, no futuro, pela qualidade técnico-científica e humanista no desempenho do Assistente Dentário, de acordo com as exigências e como membro da equipa dentária.Instituto de Investigaciones en Educación Superio

    UNITING EARLY CHILDHOOD SCREENING AND MONITORING TO INFORM INTERVENTION PRACTICES

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    The earliest years of life have a tremendous impact on the realization of children\u27s potential. Early involvement in play-based learning positively affects child brain development during sensitive periods that peak before school-age. ECEs can facilitate this development by being responsive, documenting children\u27s progression, and planning appropriately. The Early Childhood Education Act has no standardized procedure regarding the observation, monitoring, screening/reporting of children. Grounded in Vygotsky\u27s socio-cultural theory, this thesis provides insight into current documentation and assessment practices that ECEs use in childcare, as well as how they are following up on concerns. The researcher designed a Pre-Intervention Developmental Report, to record identified concerns, take observations and plan for follow-up, connected with two highly used instruments, the ELECT and the ASQ-3. This research emphasises a need for a framework and screening that accounts for all children and is built on the inclusivity of children from different cultures and with diverse abilities

    Construction and Preliminary Validation of the interRAI 0-3 Developmental Domains

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    Background. With no standardized approach for early assessment of childhood development in Canada, and with a lack of a comprehensive assessment-to-intervention system that amalgamates social, psychiatric, medical, functional, psychological, and environmental constructs, the interRAI 0-3 was developed to support intervention efforts based on the needs of young children and their families. The interRAI 0-3 includes over 650 items that seek clinical information, developmental milestones, and context items regarding the family and social relationships surrounding the child. The newly developed interRAI 0-3 was most recently evaluated to examine the reliability and validity of the Expressive and Receptive Language and the Gross Motor Scales as well as examine the outcomes of an at-risk subsample of preterm children. Method. Participant data included children and families (n = 640) from 17 health agencies and childcare centres in Ontario, Canada. Data were collected as part of a pilot study using the full interRAI 0-3 assessment. Criterion validity of the interRAI 0-3 was investigated using a matched sample of participants who completed the Ages and Stages Questionnaire, third edition (ASQ-3) (n = 102) independently from the interRAI 0-3 within a 3-day period of time. Upon intake within child and family agencies across Ontario participating in the pilot study, assessors who received training on the interRAI 0-3 began to collect data with the child and family using the above measures. The interRAI 0-3 training included an overview of the form, manual, coding procedures, and practice using case studies. Paediatricians, Psychiatrists, Psychologists, infant therapists, early childhood educators, child and youth workers, child life specialists, and early intervention teams administered the interRAI 0-3, with parents completing the ASQ-3. Results. The Expressive and Receptive Language scale for children aged 20-24 and 24-28 months demonstrated a high level of internal consistency, with Cronbach’s alpha reaching between 0.88 and 0.89, respectively. The Gross Motor Scale for children in the 24 to 30-month age interval also demonstrated a high level of internal consistency, with Cronbach’s alpha at 0.893. Inter rater reliability of the Expressive and Receptive Language Scale (ICC = .98, [95% CI, .97, .99], p\u3c .001) and the Gross Motor Scale (ICC = .87, [95% CI, .72, .94], p\u3c .001) was obtained for a sample of 23 participants, showing strong agreement between raters on both scales. Pearson’s product-moment correlation between the interRAI 0-3 and ASQ-3 language items was considered moderate, r(100) = .68, p\u3c 0.001, demonstrating a positive relationship between findings on the interRAI 0-3 and the criterion measure. Similarly, the gross motor scale showed a strong positive correlation, r(102) = .877, p\u3c .01 with the ASQ-3 motor items. There was also a statistically significant association between childhood performance on interRAI 0-3 language milestones and ASQ-3 achievement of items in the communication domain, χ2(1) = 26.65, p \u3c 0.001, whereas the interRAI 0-3 gross motor scale was considered statistically significant after running bivariate analysis against the ASQ-3, χ2(1) = 45.84, p \u3c 0.001. Results of logistic regression for the Language scale show that with an increase in achievement of communication milestones on the ASQ-3, the odds of pass performance on the interRAI 0-3 language items increases by 4.3% (AOR = 1.043, 95% C.I. = 1.027-1.060), and the sensitivity of model was 77.8%, with specificity slightly lower, at 72.9%. Results of the predictive model also show that with an increase in achievement of gross motor milestones from the ASQ-3, the odds of achievement on the interRAI 0-3 increases by 6.2% (AOR = 1.062, 95% C.I. = 1.040-1.084). Sensitivity and specificity of the model was also calculated, with excellent findings of 89.6% and 84.6%, respectively. A final subset of children born preterm were also examined for their gross motor milestone achievement based on extent of prematurity. The distributions of gross motor scores were significantly different across categories of prematurity H(3) = 15.520, p = .001. Gross motor scores decreased from 40 weeks’ gestation (mean rank = 310.77), to moderate to late preterm (mean rank = 258.96), and to very preterm (mean rank = 234.54), however extremely preterm (mean rank = 236.28) performed comparably to very preterm. Conclusion. The interRAI 0-3 Expressive and Receptive Language and Gross Motor scales were found to be conceptually sound on the basis of exploratory factor analysis. The changing context of the assessor was also evaluated for stability in observation and scoring. Inter-rater reliability for the both domains shows preliminary evidence of agreement between assessors. There were corresponding findings of concurrent validity between the interRAI 0-3 and the ASQ-3 as the comparison measure of child development. Additionally, scores from the interRAI 0-3 on the Expressive and Receptive Language and Gross Motor items were found to have significant positive correlations with the ASQ-3 for children between 0-47 months. Analyses also show that the ASQ-3 strongly predicts outcomes on the interRAI 0-3 Expressive and Receptive Language and Gross Motor items. Analysis of an at-risk subset of children born preterm also show poorer achievement of gross motor outcomes, which is a final measure of known-groups validity. The interRAI 0-3 was developed based on the observed need for a singular assessment that would encompass a comprehensive range of aspects related to child and family risk and linked to clinically relevant and evidence-informed interventions. This is the first study of its kind investigating the psychometric properties of the interRAI 0-3

    EL ODONTÓLOGO COMO EDUCADOR EN EL ÁREA DE SALUD DE LA COMUNIDAD

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    En los últimos años, los cambios producidos en el área de la Salud, y en particular de la Odontología motivaron el nacimiento de un nuevo paradigma en la relación odontólogo-paciente. En este sentido, el nuevo modelo imperante exige taxativamente al profesional actuar sobre la salud de la población en general y el deber de informar a su paciente todo lo concerniente con su salud bucal. Objetivos generales: Examinar la práctica social del odontólogo en la sociedad actual, y generar un espacio de reflexión en torno a los alcances del deber de informar en la práctica clínica. El objetivo particular del trabajo busca Indagar los procesos de información y diálogo entre el profesional y el paciente a través del conocimiento y uso del consentimiento informado. Metodología: Se realizó una investigación de tipo exploratoria y descriptiva. Se tomaron como variables conocimiento y utilización del consentimiento informado, siendo las unidades de análisis odontólogos platenses. Se confeccionó y tomó un instrumento de trabajo consistente en una encuesta cerrada y anónima para los sujetos experimentales. Estos últimos fueron divididos en tres grupos erarios para su tratamiento estadístico. Resultados: Del análisis del instrumento de trabajo tomado a 1000 odontólogos del Partido de La Plata y alrededores, de ambos sexos, los resultados fueron: Sobre la variable conocimiento se agruparon los datos en 2 niveles de información: registrando: Nula a escasa=863, Suficiente a Excesiva=138. La frecuencia de los datos presenta la siguiente distribución: Jóvenes: Nula a escasa=274, Suficiente a Excesiva=60. Adultos Jóvenes: Nula a escasa=415, Suficiente a Excesiva=58. Adultos: Nula a escasa=174, Suficiente a Excesiva=20. Sobre la variable utilización se registró: Utiliza=310, No utiliza=690. La frecuencia de los datos presenta la siguiente distribución: Jóvenes: Utiliza=137, No utiliza=197, Adultos Jóvenes: Utiliza=130, No utiliza=344, Adultos: Utiliza=43, No utiliza=149. ** La Educación para la Salud fortalece la relación Paciente–Odontólogo. Será conveniente entonces, evaluar la oportunidad de abrir nuevos espacios educativos, formales y no formales, para su análisis y debate en la comunidad profesional platense

    Otimização da formação de assistentedentário

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    In the higher education scenario, vocational technical training is proposed the universal expansion of technology, science and culture, which invites us to take care of and appreciate our values, to respond to competitiveness and to the challenges of quality and excellence. Dental practice is in a changing world, the health sector faces a challenge to the oral health problems of the population. Here we reflect on the training of Dental Assistants, being central to strengthen supervised pre-professional practices. For the address of the problem raised, preliminary preparation for action, planning of supervised pre-professional practices and the implementation of pre-professional practices are considered as intervention stages. The development of the stages includes, coordination and organization meetings of activities, selection of physical spaces and tutor teachers, distribution of students of the Technique in Dental Assistance in care areas of different specialties and / or complexity. It also involves monitoring and evaluating supervised pre-professional practices. This strategy will be reflected, in the future, by the technical-scientific and humanistic quality in the performance of the Dental Assistant, according to the demands and as a member of the dental team.En el escenario de la Educación Superior la formación técnico profesional se plantea la expansión universal de la tecnología, la ciencia y la cultura, lo cual invita a cuidar y apreciar nuestros valores, a responder a la competitividad y a los retos de calidad y excelencia. La práctica odontológica se halla en un mundo cambiante, el sector salud enfrenta un desafío a las problemáticas de salud oral de la población. Aquí reflexionamos sobre la formación de Asistentes Odontológicos, siendo central fortalecer las prácticas pre-profesionales supervisadas. Para el abordaje del problema planteado se consideran como etapas de intervención la preparación preliminar para la acción, la planificación de las prácticas pre-profesionales supervisadas y la ejecución de las prácticas pre-profesionales. En el desarrollo de las etapas se contemplan reuniones de coordinación y organización de actividades, selección de espacios físicos y de docentes tutores, distribución de los alumnos de la Tecnicatura en Asistencia Odontológica en ámbitos asistenciales de diferentes especialidades y/o complejidad. También involucra el seguimiento y la evaluación de las prácticas pre-profesionales supervisadas. Esta estrategia estará reflejada, en el futuro, por la calidad técnico-científica y humanística en el desempeño del Asistente Odontológico, acorde a las demandas y como integrante del equipo odontológico.No cenário do ensino superior, propõe-se a formação técnica profissional a expansão universal da tecnologia, da ciência e da cultura, que nos convida a cuidar e apreciar os nossos valores, a responder à competitividade e aos desafios da qualidade e excelência. A prática dentária está num mundo em mudança, o sector da saúde enfrenta um desafio aos problemas de saúde oral da população. Aqui refletimos sobrea formação de Assistentes Dentários, sendo centrais para fortalecer as práticas pré-profissionais supervisionadas. A preparação preliminar para a ação, o planeamento das práticas pré-profissionais supervisionadas e a implementação de práticas pré-profissionais são consideradas como fases de intervenção para a resolução do problema levantado. O desenvolvimento das etapas inclui, coordenação e reuniões de organização de atividades, seleção de espaços físicos e professores tutores, distribuição de alunos da Técnica de Assistência Dentária em áreas de cuidados de diferentes especialidades e/ou complexidade. Envolve também a monitorização e avaliação de práticas pré-profissionais supervisionadas. Esta estratégia refletir-se-á, no futuro, pela qualidade técnico-científica e humanista no desempenho do Assistente Dentário, de acordo com as exigências e como membro da equipa dentária

    Antibiotic therapeutics for the treatment of acute apical abscess. Case report

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    Introducción: El absceso apical agudo es una de las patologías que se presentan con mayor frecuencia en la práctica diaria como consulta odontológica. Dicha patología es acompañada de síntomas como dolor espontáneo, dolor a la percusión vertical, que aumenta con el calor.Introduction: The acute apical abscess is one of the most common pathologies daily seen in dental practice. This pathology appears together with other symptoms such as sudden pain and pain inflicted by vertical percussion that increases with the heat.Facultad de Odontologí

    Experiencia docente y percepción estudiantil de la Tecnicatura Asistencia Odontológica en tiempos de pandemia

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    Introducción: En el marco de la contingencia provocada por pandemia covid-19 los integrantes del equipo de la Tecnicatura Universitaria en Asistencia Odontológica, atento a los límites y posibilidades de la situación, repensamos el escenario de formación y los contenidos de manera integral. Abordar las prácticas docentes desde una postura teórico-epistemológica y al mismo tiempo “pensarlas” y “hacerlas” en vinculación con el momento de desempeño “in situ” del Asistente Odontológico sigue siendo un desafío. Objetivo: reflexionar acerca de las prácticas docentes virtuales y la percepción estudiantil.Facultad de Odontologí

    Aplicación del derecho a la salud en la práctica odontológica universitaria

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    Entre los derechos sanitarios prioritarios se acordó el respeto por la autonomía del paciente convirtiéndose en el eje de la toma de decisiones sanitarias modificando el paradigma de atención clínica en Odontología. Por tanto, cabe evaluar la implementación clínica del citado derecho bioético desde la mirada del paciente que asiste a un Centro hospitalario universitario. OBJETIVO: Examinar la práctica del respeto por la autonomía desde la perspectiva del paciente que recibe atención clínica en el Hospital Odontológico Universitario de la FOUNLP. MÉTODOS: Se realizó un estudio descriptivo sobre variables: a) “grado de conocimiento del consentimiento informado”; b) “instrumentación del derecho a la información clínica”. Se registró una encuesta cerrada, voluntaria, anónima y por autorreporte a una muestra azarosa de 120 pacientes del Hospital Odontológico Universitario, FOUNLP. El muestreo comprendió 60 pacientes de clínicas de alta complejidad (Grupo A) y 60 pacientes de clínicas de mediana complejidad (Grupo B). Los análisis estadísticos fueron realizados con Epi Info ™ Versión 3.3.2 y EPIDAT 3.1. RESULTADOS: En relación con la primer variable se evaluó el indicador “identificación de componentes del consentimiento informado” hallándose positivamente: Grupo A=34, 56,67%; Grupo B=37, 61,67%; p>0.05. Al medir “identificación del concepto de autonomía” se registró un conocimiento significativo, siendo su distribución: Grupo A=32, 53,33%; Grupo B=35, 58,33%; p>0.05. Respecto a la segunda variable, se evaluó el indicador “obtención del consentimiento”, registrándose positivamente: Grupo A=54, 90,0%, Grupo B=58, 96,67%; p>0.05. Al medir “conformidad con la información recibida” se registró positivamente: Grupo A=27, 45,0%, Grupo B=58, 96,67%; p 0.05. By measuring “the concept of autonomy identification” significant knowledge was recorded, and its distribution: Group A = 32, 53.33 %; Group B = 35, 58.33%; p> 0.05. With respect to the second variable, the indicator “obtaining consent” was evaluated positively recorded: Group A = 54, 90.0 %, Group B = 58, 96.67%; p>0.05. By measuring “According to the information received” was recorded positive: Group A = 27, 45.0%, Group B = 58, 96.67%; p <0.05. In assessing “Under the proposed plan of treatment” was recorded positive: Group A = 56, 93.33%, Group B = 58, 96.67%; p<0.05. CONCLUSION: Based on the data from the processed sample it can be concluded that: a) both groups of patients showed a significant positive identification of knowledge associated with informed consent as well as their preparation in clinical practice; b) However, the group of patients who starred practices of high complexity provided a better level of compliance regarding the right to medical information (p < 0.05).Fil: Miguel, Ricardo. Universidad Nacional de la Plata. Facultad de Odontologia; Argentina. Universidad Nacional de la Plata. Facultad de Odontologia; ArgentinaFil: Zemel, Martín Gastón Esteban. Universidad Nacional de la Plata. Facultad de Odontologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cocco, Laura Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Plata. Facultad de Odontologia; ArgentinaFil: Sapienza, María Elena. Universidad Nacional de la Plata. Facultad de Odontologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Polvora, Beatriz. Universidad Nacional de la Plata. Facultad de Odontologia; ArgentinaFil: Iantosca, Alicia Elena. Universidad Nacional de la Plata. Facultad de Odontologia; ArgentinaFil: Di Girolamo Pinto, Germán Enrique. Universidad Nacional de la Plata. Facultad de Odontologia; Argentin

    Assessing the Impact of Water Salinization Stress on Biomass Yield of Cardoon Bio-Energetic Crops through Remote Sensing Techniques

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    Various species of cultivated thistle, such as Cynara cardunculus L. (cardoon), exhibit interesting features for industrial biomass production as bioenergy crops, given also their advantageous adaptation capacities to typical Mediterranean climate trends, with noticeable resilience to drought and salinization stresses. The in situ hyperspectral reflectance responses of three genotypes of cardoon plants, irrigated with water at different salinity levels, have been tested for assessing the effects on their biophysical parameters, aiming at improving the biomass yield for bioenergy production, minimizing at same time the environmental impacts and the exploitation of soils and waters resources. The leaf and canopy reflectance hyperspectral signatures, acquired at three different growth stages with biometric measurements, were statistically analyzed (ANOVA, Tukey's test, graphs), as noise-resilient spectral indices, sensible to different plant features of interest. Their broadband versions, based on the Landsat 8 OLI and Sentinel 2 MSI satellite sensors, were also evaluated in perspective of operative and extensive remote crop monitoring from space. The results highlighted significant differences in some spectral index responses, related to different cardoon genotypes and water salt concentration. The biometric data supported by red-edge indices modelling evidenced the impact of the highest salt water concentration (200 mM/L) on the plant growth and yield
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